======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '358'
                                          'artist'  'Tosca'
                                     'text_people'  ''
                                         'release'  'Suzuki In Dub'
                                           'title'  'Annanas (Cosmic Rocker Dub)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'electronic', 'trip hop', 'downtempo', 'chillout']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '101.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Suzuki In Dub'
'TBPM' (BPM (beats per minute))                     '101.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Annanas (Cosmic Rocker Dub)'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '358870'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Tosca'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['lounge', 'electronic', 'trip hop', 'downtempo', 'chillout']
'TXXX:original release date'                        ['2000', '2000']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.49 dB'
'TXXX:replaygain_track_peak'                        '0.650750'

========================== row from database ==========================
                                              'id'  1361783
                                            'path'  /data/Music/Bulk/00poprockelectronic/Tosca/tosca - Annanas (Cosmic Rocker Dub).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  358
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  5749240
                                           'mtime'  1620541136
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic tosca prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Tosca
                                     'tag_release'  Suzuki In Dub
                                       'tag_title'  Annanas (Cosmic Rocker Dub)
                                             'bpm'  101.9
                                    'search_title'  'annanas':1 'cosmic':2,3 'dub':5,6 'rocker':4
                                   'search_artist'  'tosca':1
                                  'search_release'  'dub':3 'in':2 'suzuki':1
                                     'search_rest'  '00poprockelectronic':1 'bossa':9 'exotica':8 'jazz':5 'jb':4 'lounge':6 'or':7 'prerock':3 'tosca':2
                                    'search_combo'  '00poprockelectronic':11 'annanas':1A 'bossa':19 'cosmic':2A,3A 'dub':5A,6A,10C 'exotica':18 'in':9C 'jazz':15 'jb':14 'lounge':16 'or':17 'prerock':13 'rocker':4A 'suzuki':8C 'tosca':7B,12
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'electronic', 'trip hop', 'downtempo', 'chillout']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620541136.305589  (2021-05-09 08:18:56)
                             'size'  5749240